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Renergy Roofing vs Eco Performance Builders
Contra Costa General Contractors Comparison · Updated March 2026
These contractors serve completely different needs: Renergy Roofing specializes in roofing work while Eco Performance Builders focuses on HVAC and energy efficiency upgrades.
| Renergy Roofing | Eco Performance Builders | |
|---|---|---|
| Rating | ★ 5.0 | ★ 5.0 |
| Years Licensed | 1 years | 16 years |
| License # | 1127157 | 944856 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Walnut Creek, CA | Walnut Creek, CA |
| Website | renergyroofing.com | ecoperformancebuilders.com |
Key Differences
What Customers Say
Renergy Roofing
Customers consistently emphasize Renergy Roofing's transparent pricing communication, responsive scheduling, and organized execution with clean worksites throughout roof replacement and repair projects.
Eco Performance Builders
Customers repeatedly highlight Eco Performance Builders' thorough energy assessments, technical expertise in system selection, and comprehensive approach to identifying and addressing multiple building performance issues.
Key Takeaway: Renergy's feedback centers on straightforward project communication and execution, while Eco Performance's reviews emphasize diagnostic depth and guidance through complex technical decisions about building systems.
Customer Reviews
Renergy Roofing
Moshe was great to work with. Not only was his quote very competitive but he also provided recommendations for underlayment that would be best for the area that I am planning to install solar panels. ...
Couldn't have asked for a better experience! Renergy Roofing has been amazing to work with, and I especially want to thank Moshe for all of his help throughout this whole process. He really went abov...
After getting several quotes, I decided to go with Renergy Roofing. Moshe was straightforward and transparent about pricing-no hidden fees, no cutting corners, just honest work at a fair price. Highly...
Eco Performance Builders
We needed a new heater and went for a heat pump. Their approach is top shelf: our uninsulated house was insulated, new ductwork installed, recommended window replacement to allow for smaller system. ...
I had Eco Performance Builders install two heat pump HVAC systems with new ducts, new attic insulation, and an ERV system for my house. From start to finish, they were very prompt, knowledgeable and ...
Great service from project planning, design,. permitting and delivery. Highly detail oriented crew that gets the job done well and on time.
Consider Renergy Roofing if...
- ✓ You need roofing work including replacement, re-roof, leak repair, or roof inspection rather than HVAC or insulation services
- ✓ Transparent upfront pricing and straightforward communication about materials and scope are priorities for you
- ✓ Your roofing project is relatively straightforward without significant structural concerns or unusual complications
- ✓ You value a hands-on, responsive contractor who maintains organized, clean worksites and handles permit coordination
Consider Eco Performance Builders if...
- ✓ You need HVAC installation, heat pump systems, insulation upgrades, ductwork replacement, or comprehensive energy efficiency improvements
- ✓ Your project involves complex system integration such as heat pumps, ERV systems, or whole-home performance upgrades requiring technical expertise
- ✓ You want a contractor with extensive experience diagnosing building performance issues and recommending systems-based solutions
- ✓ A 16-year track record navigating unexpected complications and evolving building codes gives you greater confidence
Questions to Ask Before Hiring
- → If considering Renergy Roofing: Ask for references from projects similar in complexity to yours, particularly if your roof is older or may have hidden damage requiring experienced diagnosis
- → If considering Eco Performance Builders: Ask about their approach to system sizing and equipment selection for your specific home layout and climate zone
- → Ask both companies about their warranty coverage on labor and materials, and what their process is for addressing any issues after project completion
The Bottom Line
This comparison only matters if you're unclear whether your project needs roofing or energy efficiency work, as these contractors serve entirely different trades. For roofing projects, Renergy Roofing is your only option here and receives positive feedback for communication and execution, though the 1-year licensing means less experience with complications. For HVAC, insulation, or energy efficiency work, Eco Performance Builders is your choice, with 16 years of diagnostic and installation experience providing significantly more expertise for complex building performance issues. If you genuinely need both roofing and energy work, hire both contractors and coordinate scheduling. Don't choose based on experience alone when the core question is which trade addresses your actual home improvement need.
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Frequently Asked Questions
You'll need to hire both contractors as they serve different trades. Coordinate timing carefully if projects overlap, particularly if insulation work in the attic might be affected by roofing tear-off schedules. Ask each contractor to communicate about access needs and project sequencing to avoid conflicts or duplicated work on shared building envelope areas.
One year licensed means less experience diagnosing hidden dry rot, unusual flashing situations, or structural complications that appear during tear-offs. Customer feedback indicates professional execution on completed projects, but for complex or older roofs with potential complications, ask specifically about their experience with similar challenges and request references from comparable projects. The workers comp and bond provide financial protection regardless of experience level.
For standard equipment replacements, the experience gap matters less than for complex diagnostic work or whole-home retrofits. Where 16 years licensed significantly benefits you is in accurate system sizing, identifying underlying building envelope issues affecting HVAC performance, and troubleshooting unexpected complications during installation. If your project involves comprehensive energy assessments or integrating multiple systems, the veteran experience provides substantial value.
Both companies conduct inspections in their respective trades. If you're uncertain whether attic moisture is from roof leaks or condensation issues, or whether comfort problems stem from insufficient insulation versus inadequate HVAC capacity, consider getting assessments from both. Renergy can identify roofing deficiencies while Eco Performance can evaluate building envelope and system performance, giving you a complete picture before committing to either project type.
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How We Compare Contractors
License Verification
All license data is sourced from official California CSLB records and verified regularly.
Review Analysis
Customer reviews are aggregated from Google and analyzed to identify patterns in service quality.
Detailed Comparison
We analyze credentials, insurance, experience, and feedback to highlight meaningful differences.
Not all licensed contractors are created equal. While a valid license is the baseline requirement in California, contractors can vary significantly in experience, insurance coverage, and customer satisfaction.
- Experience matters: A contractor with 15+ years of experience has likely encountered and solved problems that newer contractors haven't faced yet.
- Workers' compensation protects you: If a contractor without workers' comp insurance has an employee injured on your property, you could be held liable.
- Reviews reveal patterns: Individual reviews can be misleading, but patterns across many reviews often reveal a contractor's true strengths and weaknesses.
- Bond amounts vary: A contractor's bond provides financial protection if they fail to complete work as agreed. Higher bonds offer more protection.
Taking time to compare contractors on these factors can save you from costly mistakes and help ensure your project is completed by a qualified professional.
Data Sources: License information from California CSLB. Ratings and reviews from Google. Last verified March 13, 2026.
This comparison is based on publicly available information. We recommend getting multiple quotes and verifying all credentials directly before hiring.
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